SG3525A Datasheet - ON Semiconductor

SG3525A Pulse Width Modulator Control Circuit

Pulse Width Modulator Control Circuit SG3525A The SG3525A pulse width modulator control circuit offers improved performance and lower external parts count when implemented for controlling all types of switching power supplies. The on chip +5.1 V reference is trimmed to "1% and the error amplifier has an input common mode voltage range that includes the reference voltage, thus eliminating the need for external divider resistors. A sync input to the oscillator enables multiple unit.

SG3525A Features

* built

* in soft

* start circuitry, requiring only an external timing capacitor. A shutdown pin controls both the soft

* start circuitry and the output stages, providing instantaneous turn off through the PWM latch with pulsed shutdown, as well as soft

* start recycle with lon

SG3525A-ONSemiconductor.pdf